NORFOLK, Va. (WAVY) — Christina Sheldon says she watched a large group of juveniles walk calmly across East Virginia Beach Boulevard just before police say they stormed into a 7-Eleven and ran away with stolen merchandise.

About 20 juveniles are believed to be involved in the Halloween night incident, according to Norfolk police.

Jo Ann Hughes, public information officer, says detectives are now reviewing in-store surveillance in hopes of identifying any suspects.

Sheldon started recording on her cell phone when she saw things getting out of control inside the store, located at the corner of East Virginia Beach and Ballentine Boulevards.

Police say about $300 in merchandise was stolen.

“It happened really quickly,” said Sheldon, who says the kids were dressed in black and many were wearing masks. “They got up to the front of the door and they kind of ran in and kind of scattered. I saw a couple trying to scare the people behind the counter.”

Sheldon says after bum-rushing the store, some of the suspects tossed items at windows.

“When you’re a kid, you don’t think about the seriousness of what you are doing,” she said.

Customers who watched the video Tuesday outside the store expressed their concern for the innocent employees and customers.

“It’s horrible,” said Ashlynn Cannon. “It’s Halloween. It’s supposed to be fun, not disruptive … Little children could have been in there.”

A manager at the 7-Eleven, who identified herself as Cindy, would not share the surveillance video from inside the store.

WAVY.com sent an email to 7-Eleven corporate headquarters Tuesday afternoon and we’re still waiting to get a response.